Talking-machine.



No. 885,489. PATENTED APR. 21, 1908. T. KRAEMER.

TALKING MACHINE.

APPLIOATION TILED NOV. 5, 1907.

INVENTOR Mn?" ATTORNEYS adapted to lie.

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'IHOMAS KRAEMER, Oi" PHILADELPHIA, PENNSYLVANIA. ASSIGNOR TO HAWTHORNE &

SHEBLE MANUlX-iCTU-RINL': (JOMIAN I, Ol PHILADELPHIA, PENNSYLVANIA, A CORPO- RATION OF PENNSYLVANIA.-

TA LKING-MACHIN E Specification of Letters Patent.

Iatented April 21, 1908.

To all whom it may crmccm.

Be it known that l, 'lnon ts iinnnnnn, a. citizen of theUnited States, residing at Phila deiphis, in the county of Philadelphia and State of Pennsylvania, have invented a certain new ind useful Improvement in 'lalkinghluchines, of which the following is a specihcation.

This invention relates to talhirig-machines of the ty e employing, a pivotally mounted sound-tn e having: esound-bori connected to one end tl'rcreofpw'iih its styms tracking in the record-groove.

More particularly, the invention relates to such machines of the type employing devices for exerting s yielding pressure upon the sound-tube tending to turn it about its pivot to feed the s -bo); across the record, the sound-tube and -box being" restrained against too rapid movement by the coaction of the stylus with the well of the record-groove.

The object of the .inventhm is to effect certain improvements in the construction of the devices for exerting this yielding pressure.

In accordance with the invention, these devicesere mounted 'within'thc sound-conveying tube so that they are concealed from View, and therefore do not det "act from the appearance of the machine. Furthermore, these devices are so ar tinged that in mount-- ing the sounthconveying tube upon its su port, the yielding-pressure le vices are hrougiit to otential relation, so that they are in rea iness foroperation,without any manipulation on the part of the operator.

The referred embodiment of my invention is illustrated n the driuvings, in which Figure 1 is e. sectional elevation of a portion oia talking-machine igs. J and .3 are detnii views in section on lines '2-2 mid .53, respectively, of Fig. '1, and Figs. 4 and 5 ore detail views in elevation and perspective, rcspeotively, hereinafter referred to.

Referrin to these drawings, 1 indicates ihen'iotorox oi the talking-machine, wiihin which is a motor driving a vertical shnl'l 12 This shaft has a, turn-table f3 secured upon its upper end, on which the disl-record 4 is Acoupling-momher A cured to one side of the motor-hon .3 1 and extends outwardly and upwardly therelrom. Thrpugh the upper end 01' this member is an opening, and the wall about the upper end of this openingis formed to provide a support for an amplifying-horn 6, the smallend of which communicates with this 0 ening. Mounted upon the member 5, near t e end of the opening opposite to that with which horn 6 communicates, is a pin 7 verticelly fifi disposed. The tone arm 8 is pivotelly mounted at one end u on the member 5, and at its other end carries tire sound-box 9, the styhis 10 of which trucks in the record-groove. The it l1C-t1TII1 8 has brackets 11 secured thereto, in which a cross-head 12 is mounted on horizontal pivots, as best shown in Fig. 3. This cross-head carries a vertically disposed sleeve 13. The tone-arm is mounted upon the coupling-member by passing the sleeve 13 down over the in 7, the tone-arm 8 during this operation eing held at somewhat of an angle to the horizontal, and the tonearm is then lowered to its horizontal position, this movement carrying its end a short distance 'into the opcning in the couplingnnember 5.

This being done, the tone-arn1 is capable oi movement in any direction, so that the stylus ot' the sound hox may track faithfully in the rccordarmve, the arm turning about the pin 7 us a vertical axis and about the pivots of the cross-head 12 as a horizontal axis.

A ost 14 is mounted upon the couplingmem ier 5 short distance within the end or the opening therethrough which the tone- S5 arm 8 enters. A short slot may be cut in the end oi the tone-arm 8, through which this postmay extend, as shown in Fig. 1. Secured on the post'is a collar 15, to which is secured one end of ucoil-spring 16. The other end of this spring is carried out a. short distance 'rom the axis ol post 14 and is prov ided with a hooked end portion, as shown at 17. in the drmvings, the spring 16 is shown us or lriicul form through a portion of its length. and then ol constantly increasing di.-1meter; but variations in this respect may oi' course be mode. The hooked end 17 of spring us engages the end ol the tone-arm 8,

as est shown in Fig. I, so that the spring lends to turn the ton u l'l1\ about the pin 7 as an axis with a yielding pressure, this pressure serving to feed the sound-box across the record the sound-record 4 is rotated.

.W'hen the tone-arm 8 is turned about the axis of the pivots of cross-head 12, raising the sound-box 9 oil the record, the inner end of the tone-arm S will be carried to the leit'in Fig. 1. until it releases the hooked end of spring 16. When tone arm 8 has been turned to this extent, its inner end is free of lo the-walls of the opening through couplingmember 5, and the tone firm may be raised to carry sleeve 13 ollot pin 71 It will be seen that in mounting tone-elrin Supon couplingmember 5, performing the movements above 15 described in reverse order, the inner end of tone-arm 8 will engage the hooked end of spring 16 without any mani ulation on the part of the operator directe particularly to causing such engagement, and will put spring 20 16 under. tension, so that when the tone-arm and soundbox are in position for operation, the spring 16 will be in potential relation. Furthermore, it will be seen that the s n'ing tor exerting the yielding pressure and the post supporting the same are within the sound-conveying device, including the tonearm and the opening through thesupport therefor, so that these parts are concealed from view.

With disk sound-records as commonly constructed, the record extends from the periphery of the disk inwardly a distance "from the periphery, and at the center of the disk are a circular s iace to receive a label and an opening throng 1 which the upper end of the shaft 2 extends. The spring 16 or other yielding-pressure device acts on the tonearm to turn it about its pivot in order to carry the stylus of the rcproducer across the portion of the disk having the souml-record formed therein, and at the conclusion of the reproduction this yieldingpressure device would, i't'nie'ans were not proi'idcd to guard against it, carry the stylus across the label portion ofthe disk and into engagement with the shaft 2, resulting in damaging the stylus and )ossibly the reproducer. To prevent this, i provide a stop device arranged to arrest the movement of the tone-arm and sound-box about the pivot of the tone arm" at the conclusion of the reproduction, this means being adjustable to permit of only a predetermined amount of movement of the tone-arm about its pivot. This stop device is illustratedin Figs. 4 and of the drawin s. A collar 18 is provided at the base of the pin 7 and a set-screw 19 extends through a threaded o ening in this collar so that the screw may e tightened to secure the collar to 18 upon the pin 7 in any desired angular position. in the upper face of collar 18 anotch 20 is cut, into which extends a pin 21 depending from the cross-head 12 carried by the brackets 11, asthe sound-record is reproseaeee duced, the pin 21. turns with cross-head 12 andtene-arm 8, ahd at the conclusion of the reproduction comes into engagement. With the wall 0. the notch 20, this engagement precluding any further movement of the tone-arm about its pivot. The set-screw 19 7% permits of adjusting the collar 18' about the pin 7, so that the turning movement of the tone-arm is arrested at the conclusion of the reproduction in every case, though the soundrecords on the several disks extend in" ardly 7-5 from'the peripheries of the disks varyingdia tances. collar 18 shown in Fig. 5 has a notch 20 cut-therein, the side walls of which are vertically disposed. Such a collar would serve the single purpose of arresting the turning movement of the tone-arm as above described. This notch however, may be so formed that the coaction of the end oi pin 21 with a wall of the notch supplies the yielding pressure for turning the tone-arm aboutits pivot, and this means for supplying the yieldmg pressure may be used a one or in combination with the spring 16. Thus, the collar 18 shown in Fig. a has one wall of the notch 20 disposed at an incline, and at the beginning of the re reduction the end of pin 21 is at the top 0' this incline. As the reproduction'continues, the end of pin 21 rides down the incline and the tone-arm drops under the influence of gravity somewhat. Such downward movement can be vll'ected only by turning the tone-arm about its pivot and thus yieldingly pressin it in a direction to carry the stylus across sound-record.

it the conclusion of the reproduction, the pin 21 engages the opposite wall of the notch 20 in the collar 18 and arrests the turning movement of the tone-arm.

Having now described my invention, what I claim as new therein and desire to secure by Letters Patent as follows:--

1. In a talkingmiachine, a sound-conveying device including a pivotally-mounted tubular memb I a sound-box connected to one end of said member, and means inclosed within said sound-conveying device for exerting pressure on said tubular member to turn. it about its pivot, substantially as set forth.

2. In a talking-machine, a sounttconvey ing device including a pivotally-mounted tubular member, a sound-box connected to one end of said member, and a spring withins said sound-conveying device arranged to exert )ISSHIC on said tubular member to turn it about its pivot and to be restored to po tential position in restoring said member to initial position, substantially as set forth.

3. In a talking-machine, a tubular member, a'supnort on whichrsaid member is iv- 12 otally mounted, a sound-box connecter to the free end of said member, and means for exerting pressure on said member to turn it seems about its pivot, said means being brought to potential relation in mounting said memper fiipon said support, substantially as set ort i 4. In a talking-machine, a tubular member, a support on which said member is pivot ally mounted, a sound-box connected to the free end of said member, and a spring enaged and put under tension by said member inmounting the same upon said support, substantially as set forth.

5. In a talking-machine, a sound-convoy ing device including a support having an openin therethrough and a tubular member pivotal ly mounted thereon in communication with said opening, a sound-box connected to the free end of said tubular member, and means inclosed Within said sound-conveyingdevice for exerting pressure on said tubular member to turn it about its ivot, said means being brought to potential relation in mountin" said member upon said support, substantiiill y as set forth.

6. In a talking-machine, a sound-convey ing device including a support having an opening therethrough and a tubular member pivotally mounted thereon in communica tion With said opening, a sound-box connected to the free end of said tubular member, and a spring within said sound-conveying device exerting pressure on said tubular me inher to turn it about its )ivot, said spring being engaged and put under tension by said member in mounting the same upon said support, substantially as set forth.

7. In a talking-machine, a support having an opening therethrough, a tubular tone-arm pivotally mounted thereon in communication With said opening, a spring carried by one of said parts and engaging the wall of the opening through the other to exert pressure tending to turn said tone-arm about its pivot. and a sound-box connected to the frcc ond oi the tone-arn'i, substantially as set forth.

8. In a talking-machine, :1 support having an opening thercthrough, a tubular tone-arm pivotally mounted thereon in communication With saidoponing, a spring carried by one of said parts nnd exerting pressure lcnding to turn said tone-arm about it's pivot. said spring being carried into cngagcmcnt With the wall of thc opening through thc other of. said parts and put nndcr tension thereby in momiting thc tone-arm on tho support, and a sound-box conncclcd to the free end of the tone-arm, substantially as set forth.

9. In a talking-nunzhiuc, a cmipling-mcmher having an opening thcrethrmigh, a. tonearm pivotally mounted on said mcmbcr, its end entering within said openin a post mounted on said member within the opening therein and adjacent to the end of the tonc arm, a spring secured to said post and engaging the end of the tone-arm to turn the arm about its pivot and a sound-box connected to the free end of the tonemrm, substantially as set forth.

10. In a talking-machine, the combination of a holder for a sou1nl-record, means for driving the same and the record thereon, a pivoted sound-convcying device, a reproducer connected to said device and having a stylus coacting with the record-groove, means inde )endent of the sound-record for exerting yiclr ing pressure on said device to move the reproducer across the sound-record so that the stylus thereof will track in the recordgroovc, means for arresting the movement of the sound-conveying device, and means for effecting an adjustment of said arresting means, substantialh as set forth.

11. In atalking-11inchinc, thc combination of a holder for a sound-record, mcans for rotating the same and the rccord thereon, a support, a sound-ct)n eying device pivoted thereon, rcprodm-ing mechanism including a stylus connected to said device, n sans independent of thc sound-record for exerting yielding j'n'cssurc on said device to move said .mcchanism across the sound-record so that the stylus thereof will track in the recordgroovc, coacting surfaces on said support and device brought into engagement by the movement of said device about its pivot and serving to arrest such movement, and means for cll'ecting an adjustmcnt of one of said surfaces, substantially as set forth.

12. in a talking-machinc, the combination of a holder for a sound-record, means for rotating the same and the record thereon, a"

coupling-member, a vertical pin thcreoh, a tone-arm, a sleeve pivoted on the tone-arm and receiving said pin, a collar having a notch cut therein adjustably mounted on said pin and a projection on said sleeve entering said notch, substantially as setforth.

13. [n a talkingnnachinc, thc combination of a holder for a smnnl-rccord, means for ro tating the same and thc record thereon, a support, a s mud-conveying dcvicc pivoted on the support, reproducing mechanism conncctcd to said device and having a stylus tracking in thc rcc n'dgroovc, a collar on the pivot of said device having a notch cut therein one wall of which is inclined, mcans for securing said collar upon said pivot. in various angular positions, and a projcction on said dcvicc entering said notch, said projection bcing adapted to move down said inclined wall by gravity to cxcrt yielding pressure on said st und-convcying device to turn it on its pivot and to engage another wall of the notch to arrest said movcmcnt, substantially as set forth.

ll. ln a talhirig-machine, the combination of a holder for a sound-record, means for rotating thc same and the record thereon, a

support, a s0u'ndc0nvey"ing device pivo'tally gressure on said device, substantially as set mounted thereon, re roducing mechanism orth. 10 connected to said device and having a stylus This specification signed and witnessed tracking in the record-groove, means ectuthis 25 day of October, 1907.

eted by movement of said device under the THOMAS KRAEMERQ influence of gravity for exerting yielding) Witnesses:

pressure thereon tending to turn it on its H. MEIER,

pivot, and a. spring also exerting yieldingj H. hfiQ I-ILSCHLEGEI. 

